/*
 * Copyright (c) 2025 Oracle and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.helidon.webserver.tests.grpc;

import java.util.ArrayList;
import java.util.List;

import io.helidon.common.Weight;
import io.helidon.grpc.core.InterceptorWeights;
import io.helidon.webserver.WebServer;
import io.helidon.webserver.grpc.strings.StringServiceGrpc;

import io.grpc.Metadata;
import io.grpc.ServerCall;
import io.grpc.ServerCallHandler;
import io.grpc.ServerInterceptor;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;

class BaseInterceptorTest extends BaseServiceTest {

    static List<ServerInterceptor> INTERCEPTORS = new ArrayList<>();
    protected StringServiceGrpc.StringServiceBlockingStub stub;

    BaseInterceptorTest(WebServer server) {
        super(server);
    }

    @BeforeEach
    void beforeEach() {
        super.beforeEach();
        stub = StringServiceGrpc.newBlockingStub(channel);
    }

    @AfterEach
    void afterEach() {
        stub = null;
        INTERCEPTORS.clear();
    }

    @Weight(InterceptorWeights.USER)
    static class Interceptor1 implements ServerInterceptor {

        @Override
        public <ReqT, RespT> ServerCall.Listener<ReqT> interceptCall(ServerCall<ReqT, RespT> call,
                                                                     Metadata headers,
                                                                     ServerCallHandler<ReqT, RespT> next) {
            INTERCEPTORS.add(this);
            return next.startCall(call, headers);
        }
    }

    @Weight(InterceptorWeights.USER - 10)
    static class Interceptor2 implements ServerInterceptor {

        @Override
        public <ReqT, RespT> ServerCall.Listener<ReqT> interceptCall(ServerCall<ReqT, RespT> call,
                                                                     Metadata headers,
                                                                     ServerCallHandler<ReqT, RespT> next) {
            INTERCEPTORS.add(this);
            return next.startCall(call, headers);
        }
    }

    @Weight(InterceptorWeights.USER - 20)
    static class Interceptor3 implements ServerInterceptor {

        @Override
        public <ReqT, RespT> ServerCall.Listener<ReqT> interceptCall(ServerCall<ReqT, RespT> call,
                                                                     Metadata headers,
                                                                     ServerCallHandler<ReqT, RespT> next) {
            INTERCEPTORS.add(this);
            return next.startCall(call, headers);
        }
    }
}
